3x - 2 for x = 5
please help me with this question here and please do it has fast has possible

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents